Tranny temps

Reply Subscribe

Thread Tools

Search this Thread

Mar 6, 2007 | 02:02 AM

mndiesel

Thread Starter

Postmaster

Joined: Jan 2007

Posts: 3,418

Likes: 1

From: Circle Pines

Tranny temps

Well about 3 weeks ago I replaced the tranny bypass and installed a bts vb. Since then my temps still seem high, 170 degrees in 45 to 50 degrees unloaded. Since its a 99 what is the possiblity that the cooler is plugged or maybe the pump in the tranny is going. Would it be best to upgrade to the 6.0 cooler or is there a way to test it to see if its the pump. Also where is a good place to pick up a cooler.

Mar 6, 2007 | 02:43 AM

Mach1

Senior User

Joined: Jul 2003

Posts: 491

Likes: 2

From: Spicewood, TX.

170 is not bad and still have another 70 degrees to go before alarming, was the TC unlocked?

Yes the 6L cooler is an excellent mod...

Mar 6, 2007 | 03:39 AM

AustinS

Laughing Gas

Joined: Jul 2003

Posts: 1,157

Likes: 1

From: Littleton, Colorado

Those temps are high considering the conditions. You could disconnect the lines to the cooler and use a suction gun full of fluid to back flush the cooler into a clean container to see if flow is obstructed. I have an '01 with the small
stock cooler, and I only see temps of 175º+ while towing at least 5K lbs. in the warm months. Ebay is a good place to get a 6.0L tranny cooler, but you have to be persistent and patient since a lot of others want one too. It beats paying over $300 for one though.

Austin

Mar 6, 2007 | 09:28 AM

aklim

Lead Driver

Joined: Jan 2006

Posts: 7,308

Likes: 250

From: Hartford, WI

Here is an idea. Take the probe out and plug up the trans. Dip the probe in hot water and put a thermometer in it. That will tell you if the gauge is reading right.

Mar 6, 2007 | 10:19 AM

redfire42

Posting Guru

Joined: Jul 2006

Posts: 1,515

Likes: 0

From: Jonestown PA

My tranny runs about 130* unloaded in about 40* temp out side. Plus it took 35 min of driving to get there. Thought it would warm up fast then that. Does that sound right to anyone?

Mar 6, 2007 | 04:50 PM

mndiesel

Thread Starter

Postmaster

Joined: Jan 2007

Posts: 3,418

Likes: 1

From: Circle Pines

[was the TC unlocked?

Yes the 6L cooler is an excellent mod...[/QUOTE]

how can you tell if the tc is locked or not?

Mar 6, 2007 | 07:04 PM

KRB

Junior User

Joined: Dec 2005

Posts: 97

Likes: 0

Quote:

Originally Posted by redfire42

My tranny runs about 130* unloaded in about 40* temp out side. Plus it took 35 min of driving to get there. Thought it would warm up fast then that. Does that sound right to anyone?

That sounds like what I see on mine in 40 degree ambient temperatures